What kind of philosophy is contained in the couplets of Shanxi Village Tour?

"Tour Shanxi Village" antithetical couplet: "There is no way to doubt the mountains and heavy waters, and there is another village in the dark."

The philosophy behind it is to tell people that when you feel that the road ahead is bleak, there is always hope in front of you. This sentence inspires those who have failed, encouraging them not to despair and full of hope for tomorrow.